baber/WOPTO huggingface dataset:
Patent GB-1407017-A (GB)
Title: Centrifugal compressors
IPC: F04D29/44
Filed: 1972-11-22
Abstract: 1407017 Centrifugal compressors GENERAL MOTORS CORP 22 Nov 1972 [25 Feb 1972] 53865/72 Heading F1C A centrifugal compressor comprises a diffuser body defining diffuser passages 12, Fig. 1, having  entrances adjacent the periphery of the impeller 3, and capable of accepting a supersonic flow from the impeller, the passages having arcuate crosssections and merging adjacent the impeller so that the body defines approximately elliptical leading edges 20, Figs. 1 and 2, at the intersections of the passage boundaries, each passage including a converging portion 23 with a spiral centreline 18, terminating at a throat 24 and a diverging portion beginning at and extending in a continuous spiral downstream of the throat. The centreline 18 is a generally logarithmic spiral. The passages 12 may be of elliptical cross-section throughout their length or the cross-section may be circular initially and subsequently becoming elliptical. The diffuser body comprises two plates mating along a surface which is preferably the plane of symmetry of the passages 12. Instead of being flat, the surface may be slightly conical or spherical.
Patent GB-1275814-A (GB)
Title: Improvements relating to the control of electrohydraulic remote-controlled appliances
IPC: E02F9/20
Filed: 1969-11-05
Abstract: 1275814 Shovel excavators; grab excavators ROBERT BOSCH GmbH 5 Nov 1969 [6 Nov 1968] 54109/69 Heading E1F [Also in Division G1] A controller for an excavator comprises angular displacement transducers 18, 19, 20 providing electrical feedback signals to an electrical control unit 21 the signals indicating dispositions of the boom 11, jib 12 and grab 14 which signals are compared with control signals from transducers 27, 28, 29 representing dispositions of parts of a simulator 22 in the form of a scaled down model of the excavator which dispositions are manually controllable. The resultant error signals from the control unit are fed to electro-magnetically actuated valves controlling hydraulic actuator cylinders 15, 16, 17 which move the excavator parts to dispositions corresponding to those of the simulator.
Patent GB-1192528-A (GB)
Title: Method and Apparatus for Applying a Gas or Vapour to a Tree
Inventor: SOUTHORN WILLIAM ALLAN
IPC: A01G7/06
Filed: 1968-11-14
Abstract: 1,192,528. Applying gas to trees. RUBBER RESEARCH INSTITUTE OF MALAYA. 14 Nov., 1968, No. 54163/68. Heading A1E. A device for applying, gas &c. to a tree, e.g. a rubber tree, comprises a flexible frame 10 which may be placed in contact with the trunk and a container 12 for holding a substance or substances 15 for generating a gas or vapour secured to the frame in such a way that its interior is in communication with the trunk. The flexible frame is of expanded polystyrene and is stuck to the trunk, e.g. by natural rubber latex, and the container is preferably a transparent plastics bag with a resealable filling opening 14. The gas &c. generating substance may be chloroform, or calcium carbide which generates acetylene by reaction with moisture from the tree.
Patent GB-1210749-A (GB)
Title: Improvements relating to hole covers for vehicles
IPC: B60F3/00
Filed: 1968-11-15
Abstract: 1,210,749. Multiple fastenings. DAIMLERBENZ A.G. 15 Nov., 1968 [18 Nov., 1967], No. 54354/68. Heading E2A. [Also in Division F2]  A cover 1 for a hatch manhole, &c., in a cross country, or amphibious, vehicle is hing- edly mounted at 2 and has a rotatable handle 5, 6 respectively on the outside and inside of the cover each handle being operatively connected to a disc 8 to the periphery of which four equally spaced rods 9 are pivotally connected. A shaft 16 for the handles 5, 6, has a squared inner end to receive a pot-shaped cover 18 and the disc 8, and is rotatably supported in bearings 15 in a sleeve 14 attached to the cover 1, the cover 18 and the handles 5, 6 preferably being made of resilient material. Each bolt 9, cranked at its outer end, is slidably guided in a deformable block 19 connected to the cover 1 by a strap 20 a bevel 21 on the end of the bolt 9 riding under a pressure pad 22 projecting from a wall 3 surrounding the hatch so that the cover 1 is urged firmly against a sealing lip 23 of a sealing strip 24 when one or other of the handles 5, 6 is rotated. A stop 10, fixed to the underside of the cover 1, works in a recess 11 in the disc 8. The outer handle 5 can be lodged under two yokes when the cover 1 is open by turning the inner handle 6. (For Figure see next column)
Patent GB-1451486-A (GB)
Title: Method for producing electric contacts made of internally oxidised silver alloy
IPC: H01H11/04
Filed: 1973-11-26
Abstract: 1451486 Forging; making electrical contacts; welding by pressure CHUGAI DENKIKOGYO KK 26 Nov 1973 [28 Nov 1972] 54774/73 Headings B3A and B3R and B3H [Also in Divisions C7 and H2] Electrical contacts are produced by forming Ag-Cd alloy spheres or spheroids, oxidizing the spheres or spheroids, chemically cleaning their surfaces (e.g. with H 2 SO 4 ) and bonding them to copper wire by cold welding. The Ag-CdO spheres 2 may be welded to wire 1 by movement of ejector pin 6 having a partially spherical front surface and being held in die 7 and die holder 8 and the ejector pin 6 being spring loaded by spring 9 against die holder 8 so that a double action occurs in which the sphere is initially cold welded to the wire during movement of the ejector pin which is followed by impact of the die 7 on to the welded sphere to form the required electrical contact shape, the electrical contact so formed is then ejected from the die.
Patent GB-1241430-A (GB)
Title: Securing means for cladding sheets
Inventor: CUPIT GEORGE MOFFAT
IPC: E04D3/36
Filed: 1968-11-19
Abstract: 1,241,430. Bolting; sealing washers. G. M. CUPIT. 19 Nov., 1968 [23 Nov., 1967], No. 54846/68. Headings F2B and F2H. A washer 10 for sealing fixing holes in corrugated sheeting 9 is provided with an aperture 15 elongated in the longitudinal direction of the sheeting to allow movement of the sheeting and washer relative to the fastener, the aperture being covered by a clamp plate 11. A conical seal 12 is provided under the head of the fastener which is screwed into framework 8. To facilitate sliding movement between the washer 10 and clamp plate 11, the surfaces may be coated with glass fibre, P.T.F.E. or a silicon based antifriction composition. The sliding surface of the washer may be provided with ribs (22), Fig. 1 (not shown).
Patent GB-1194447-A (GB)
Title: Improvements in or relating to Protective Packing
IPC: B65D81/107
Filed: 1968-11-21
Abstract: 1,194,447. Packaging. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 21 Nov., 1968 [24 Nov., 1967], No. 55256/68. Heading B8C. A protective spacer for insertion between the edges of a package 3 and a container box 1 is made of foamed plastic and has projecting resilient ribs 17 separated by zones of weakness produced by grooves 29, 31 or holes 37 for easy breaking to the desired length.
Patent GB-1444158-A (GB)
Title: Grouting of offshore structures
IPC: E02B17/00
Filed: 1973-11-29
Abstract: 1444158 Offshore structures C N SHIELDS JNR 29 Nov 1973 [7 May 1973 14 Aug 1973] 55513/73 Heading E1H To secure the leg 13 of an offshore structure to a pile 17 driven through the leg, water is injected under pressure through pipe 76 to annular space 18 to loosen mud at the bottom of the space, compressed air is injected through pipe 80 to remove water and mud from the annular space 18 via the lower end of the leg 13 and then grout is introduced via pipe 80 whilst maintaining the air pressure to prevent water returning to space 18. The pressure may be increased after a quantity of grout has been introduced to force some out - into the soil around the bottom of leg 13. The air pressure is preferably reduced as further grout is injected to maintain the pressure at the bottom of leg 13 substantially constant. Water may be pumped into the space after the injection of compressed air but prior to grouting to ensure removal of all mud. After the initial quantity of grout has been injected a quantity of quick-setting grout may be introduced and allowed to set to take the weight of further grout injected. The leg may terminate below sea-level, a resilient seal through which the pile passes preventing the admission of water via the top of the leg Fig. 6 (not shown). In another arrangement a plu- .rality of piles are driven within one leg which is closed at a point below sea level Figs. 7, 8 (not shown).
Patent GB-1205097-A (GB)
Title: Rollers
Inventor: BLATT LELAND FRANCIS
IPC: F16C13/00
Filed: 1968-11-26
Abstract: 1,205,097. Rollers. L. F. BLATT. 26 Nov., 1968 [27 June, 1968], No. 56148/68. Heading F2U. A roller comprises an annular portion 11 of rubber, neoprene or urethane grooved at 13 to retain a cover 14 and moulded on to a metallic sleeve 13, the latter having portions 18, 24, 22 of varying internal diameters for the reception of interchangeable type mounting members. As shown in Fig. 2 the portion 18 is screw-threaded for the reception of a split nut 30 securing a trunnion shaft 28 of the same diameter as the sleeve portion 22. For a shaft of smaller diameter a nut 30 of the appropriate internal diameter is used in conjunction with a liner inserted in the sleeve 12, Fig. 3 (not shown). In the form according to Fig. 4 the intermediate sleeve portion 24 receives the outer race 42 of a bearing carried by a shaft 38. The resilient annular member 11 may be solid or formed with axially extending slots or recesses, Figs. 5, 6 (not shown), while its outer surface may be helically grooved, Fig. 7 (not shown).
Patent GB-1327602-A (GB)
Title: Process for preparing filled polymers
IPC: B29C48/10
Filed: 1970-11-30
Abstract: 1327602 Porous filled olefin polymers HERCULES Inc 30 Nov 1970 [4 Dec 1969] 56692/70 Headings C3C and C3P Shaped olefin polymer porous structures which contain 35 to 95% by weight of a particulate, inert, inorganic filler are made by extruding a composition comprising an olefin polymer, a filler in an amount to give the above weight per cent in the polymer structure, and 25 to 75% by weight of a hydrocarbon wax, to form a shaped structure, cooling the extrudate to form a continuous polymer phase and extracting the wax with a solvent which does not dissolve the polymer or filler and which does swell the polymer, and recovering the porous structure in the desired shape. Specified polymers are polyethylene, polypropylene and copolymers of ethylene and propylene. The wax may be a paraffin wax, a scale wax, a Fischer-Tropsch wax or microcrystalline. The solvent may be an aliphatic or aromatic hydrocarbon, a ketone e.g. methyl ethyl ketone, or an alcohol. Specified inorganic fillers are calcium carbonate, molybdenum sulphide, titanium dioxide, glass or asbestos fibres, iron oxide, and carbon black.
Patent GB-1203779-A (GB)
Title: High tensile strength tough steel having resistance to delayed rupture
IPC: C22C38/32
Filed: 1967-12-15
Abstract: 1,203,779. Alloy steel. YAWATA IRON & STEEL CO. Ltd. Dec. 15, 1967 [Dec. 16, 1966], No.56989/67. Heading C7A. A high tensile strength, tough steel which has excellent resistance to delayed rupture comprises: C 0À05-0À8% Si 0À05-2% Mn 0À3-2% Cr 0À05-6% Ti 0À01-0À3% Zr 0À005-0À3% B 0À0005-0À008% the balance, apart from impurities and incidental elements such as:- Nb/Ta, W and Pd up to 1% each Hf up to 0À5% Mo 0À05-1% Ni 0À05-5% V 0À005-1% and Cu 0À03-0À5%, being iron.
Patent GB-1413308-A (GB)
Title: Medical bedpan apparatus
IPC: A61G7/10
Filed: 1972-12-12
Abstract: 1413308 Apparatus to facilitate medical treatment E L KIMBRO JNR and C L D KIMBRO 12 Dec 1972 [18 Jan 1972] 57283/72 Heading A5R [Also in Division A4] Bedpan apparatus or apparatus for providing access for medical treatment of a patient, comprises a base 1 for sliding beneath a supine patient and supporting a crescent or generally U-shaped inflatable cushion 2 and a bedpan 10 adapted to fit between the limbs 6 of the cushion, said cushion being provided with a flexible conduit 7 and a valve 8 enabling the cushion to be inflated to lift the saccrococcygeal area of the patient and to be deflated after use of the bedpan. The base 1 extends over plan-view, beyond the cushion and the apparatus may be used without a bedpan to provide access to the patient for medical treatment. A flange 3 extends inwardly and downwardly from the inner surface of the cushion and overlies the rim 4 of the bedpan. The bedpan is curved upwardly at 9 to form a splashguard and has a handle 11. The base 1 is formed by a waterproof flexible pad and the intermediate section 5 of the cushion inflates to a higher level than that of the limbs 6. The conduit 7 may be integral with the base 1.
Patent GB-1145350-A (GB)
Title: Improvements in or relating to the grinding of optical lens blanks
Inventor: WYLDE STEPHEN JACK
IPC: B24D9/08
Filed: 1967-12-19
Abstract: 1,145,350. Grinding. J. & S. WYLDE Ltd. 19 Dec., 1967, No. 57573/67. Heading B3D. An overlay for the grinding surface of a tool for grinding optical lens blanks comprises a piece 18 of expanded metal having an adhesive coating on one side and having a single slot 20 extending from the central portion of the piece to the edge. The overlay may be fitted on a head for grinding convex or concave surfaces and be of aluminium or aluminium alloy. The overlay is preferably circular, elliptical or rectangular with rounded corners and the slot widens towards the edge. The adhesive may be protected prior to use by a paper covering which is peeled off when the overlay is fitted to the grinding head, the overlay being hammered or pressed into conformity with the head.
Patent GB-1205717-A (GB)
Title: Bis-(n-acylamino-phthalimide)-disazo dyestuffs
Inventor: HORSTMANN WALTER
IPC: C09B43/34
Filed: 1968-12-04
Abstract: 1,205,717. Disazo dyes. FARBENFABRIKEN BAYER A.G. 4 Dec., 1968 [6 Dec., 1967; 4 April, 1968], No. 57574/68. Heading C4P. The invention comprises disazo dyes, free from SO 3 H groups, of formulµ wherein B is a direct bond or an optionally substituted aliphatic, araliphatic, carbocyclic or heterocyclic radical, X is O, S or NH, K is the radical of a monofunctional coupling component, R is a substituent and m is 0, 1 or 2. The dyes are prepared by condensing a monoazo dye, derived from an aminophthalic acid diazo component, or a functional derivative thereof with an appropriate dicarboxylic acid hydrazide or a compound of formula The dyes are yellow or red pigments which areused to colour paper, lacquers, synthetic polymers and printing inks.
Patent GB-1161819-A (GB)
Title: Electrodeposition of Polymers.
IPC: C08L67/00
Filed: 1966-12-22
Abstract: 1,161,819. Polymer compositions for electrodeposition coating. GLASURIT-WERKE M. WINKELMANN A.G. 22 Dec., 1966 [31 Dec., 1965], No. 57581/66. Headings C3P and C3R. [Also in Division C7] Compositions suitable for coating metal or other conductive articles by electrodeposition comprise, in aqueous solution having a pH of 6.5-9, a certain, defined (meth)acrylic copolymer, and an ester component containing free carboxylic acid groups, which is an alkyd resin, a saturated and/or unsaturated fatty acid modified alkyd resin, a maleinized alkyd resin, or an addition product of an unsaturated polycarboxylic acid and an unsaturated oil or fat. In examples the (meth)acrylic copolymer is a copolymer of (a) butyl acrylate, methyl methacrylate, acrylic acid and N-(2-oxahexyl)-acrylamide, (b) butyl acrylate, acrylic acid, N-(2-oxahexyl)-acrylamide and styrene, (c) methyl methacrylate, ethyl acrylate, acrylic acid and N - (2 - oxahexyl) - acrylamide, and (d) 2-ethylhexyl acrylate, acrylic acid, N-(2-oxahexyl)- acrylamide, styrene and 4-hydroxybutyl acrylate. The copolymers are added to the aqueous medium in the form of n- or iso-butanol solutions, and neutralized with an ethanolamine. The ester components used in the examples are (a) a maleinized oil obtained by heating wood oil with fumaric acid and neutralizing with dimethylethanolamine and (b) a dehydrated castor oil alkyd resin having an oil content of 40%, a phthalic acid anhydride content of 29% and an acid number of 35-40. Other components of the exemplified compositions are phenol-formaldehyde resin, lampblack, titanium dioxide, iron oxides and butylene glycol. Coatings obtained from the compositions are baked at 150-170‹ C.
Patent GB-1448724-A (GB)
Title: Wheeled vehicle
IPC: B62M1/08
Filed: 1973-12-13
Abstract: 1448724 Rider-propelled vehicles T L HARRIS 13 Dec 1973 [15 Dec 1972] 57863/73  Heading B7E A rider-propelled vehicle, e.g. a bicycle 11, comprises a frame 13, front and rear wheels 17, 15, first and second pedal levers 35, 35a mounted on the frame for oscillatory movement, means interconnecting the levers whereby downward movement of either lever results in upward movement of the other, and a transmission connecting each lever to one, e.g. 15, of the wheels to drive the latter, the transmission including first means serving to vary the drive ratio between each lever and the driven wheel and operable by the rider by means of a control device, e.g. 75, connected to the first means by a flexible element, and the transmission also including a respective flexible driving element, e.g. 83, in the connection between each lever and the driven wheel and second means, e.g. 79, co-operating with each driving element to vary the drive ratio between each lever and the driven wheel as a function of the angular postion of the pedal lever. In the illustrated embodiment each lever 35, 35a is pivoted intermediate its ends and a link 47 extends from the rear end of each lever to a rocker arm 45 pivoted on the frame 13 so that downward movement of either lever causes upward movement of the other. The forward part of each lever 35, 35a is connected through a cable 53 to a respective pulley 77 rotatably mounted on the frame 13, each pulley 77 being fixed to an associated rotatable cam 79 connected by a cable 83 to an associated chain 85 passing round a sprocket connected through a one-way clutch to the wheel 15. Downward movement of either lever causes the associated chain 85 to move upwardly against the action of a spring 89 and to rotate the associated sprocket so driving the wheel 15, each cam 79 causing the drive ratio between the associated lever and the wheel 15 to vary as a function of the angular position of the lever. The springs 89 may be connected to one another by a cable 91 passing round a pulley 93 as shown or may be secured to the frame. Each cable 53 carries a member 57 with a pin receivable in notches in a slotted member 55 on the associated lever 35, 35a, each member 57 being connected both to a respective spring 65 and, by a cable 69 passing round pulleys 71, 73, to a control lever 75, movement of the lever 75 by the rider enabling selective adjustment of the drive ratio between the levers and the wheel 15 as a result of the members 57  moving in the slots of the members 55 either against, or as a result of, the action of the springs 65. The downward movement of each lever 35, 35a may be limited by a resilient stop 49 on the rear end of the lever engageable with an abutment 51 on the frame 13. The frame 13 may, as shown, be generally triangular in side elevation and comprise an upper member 19, a pair of rear members 23 and a pair of diagonal members 21.
Patent GB-1360177-A (GB)
Title: Exhaust gas recirculation system for an internal combustion engine
IPC: F02M25/07
Filed: 1972-12-19
Abstract: 1360177 Treating I C engine charges; exhaust gas recirculation NISSAN MOTOR CO Ltd 19 Dec 1972 [25 Dec 1971] 58549/72 Heading F1B An exhaust gas recirculation system, for an I. C. engine including an intake manifold 12, an exhaust manifold 14 and a secondary air supply device having a pneumatic pump 18 driven by the engine and feeding an air gallery 22, at least one secondary air injection nozzle 24 communicating with the air gallery and exhaust manifold, the exhaust gas recirculation system comprising, in combination, a conduit 42 extending between the exhaust and intake manifolds for recirculating exhaust gas to the intake manifold, valve means 30 in the conduit to control the amount of exhaust recirculation, valve actuating means having a movable member connected to a valve head 32 and having a control chamber 40 communicating with the air gallery 22 and control means 48 for controlling the pressure of secondary air in the control chamber 40 in dependence on the variation in intake manifold vacuum. The secondary air passage includes a solenoid valve 44 which closes the passage, when de-energized, while the engine is idling or running light. The control means 48 consists of a branch passage 46 connecting with the secondary air passage between the control chamber 40 and the shut-off valve 44 and vented to atmosphere, a valve element 58 to control the effective cross-sectional area of the passage 46 and a diaphragm 54 connected to the valve. One side 52 of the diaphragm is open to atmosphere and the other side is connected by a pipe 56 to the intake manifold, a spring 62 biassing the valve element 58 to the closed position. In a modification, the passage 46 is not vented to atmosphere but is connected directly to the intake manifold and includes a fixed flow restrictor. In a further modification the valve 30 consists of a bellows the interior of which communicates with the air gallery and one end of which is mechanically connected to the valvemember 32.
Patent GB-1442618-A (GB)
Title: Yarn packages and their production
IPC: B65H57/28
Filed: 1973-12-21
Abstract: 1442618 Yarn packages RHONE-POULENC TEXTILE 21 Dec 1973 [22 Dec 1972] 59454/73 Heading B8M [Also in Divisions D1-D2] To improve the cohesion of a yarn package with unsupported sides the yarn is wound in the form of crossed spiral wavy turns, the amplitude of the wave being between 1 and 10 mm, and the wave length being between 30 and 200 m,m. The density of the package may be as low as 0.1 times the density of the yarn. The package may have inwardly sloping sides or parallel sides. The pitch of the waves in each turn can be less than, equal to or greater than the diameter of the yarn.
Patent GB-1361360-A (GB)
Title: Plush fabric having a long pile
IPC: D06P1/00
Filed: 1972-12-27
Abstract: 1361360 Dyeing plush fabrics TISSAVEL SA 27 Dec 1972 [5 Jan 1972] 59630/72 Heading D1B Plush fabrics are dyed or printed by applying a dyestuff to the rear of the backing of the fabric under a pressure sufficient to cause the dyestuff to penetrate the backing and dye the root of the pile to an etent dependant upon the pressure. The dye may be applied using a frame which is pressed hard against the back of the fabric, different dyes may be applied at different locations and dye overlapping may be used to give varying colour effects. Imitation fur effects are obtained.
Patent GB-598440-A (GB)
Abstract: 598,440. Combined printing and embossing. ROYAL LACE PAPER WORKS. Sept. 4, 1945, No. 22705. Convention date, Nov. 25, 1944. [Class 100 (ii)] Shelf edgings, coverings &c. are formed by uniting two or more plies of thermoplastic or thermosetting materials one of which is embossed to form a raised design and another of which is printed with a design which registers at least in part with the embossed design the printed design being arranged between two plies. As shown in Fig. 1 a backing ply 1 is first printed on its upper surface by a printing-couple P, P<1>, and is then united to a plastic layer 3 delivered from an extruder 4. A band 2 carries the united layer under an embossing roller E which embosses the ply 3 in register with the printed design which is enclosed between the plies. In a modification the layer 3 may be combined with a printed layer 5, Fig. 5, which joins the extruded layer 3 ahead of the extruder, and the embossing roller E embosses both the layers 3, 5. The layer 5 is printed by rollers P, P<1>, and a layer 1 is also printed with a design by rollers P<2>, P<3>, but the layer 1 is formed with a flat undersurface. The layer 3 is of transparent material. The layer 1 may be omitted. Similar products may be obtained by flat printing and embossing machines. The plastic materials used may be transparent synthetic resins, or cellulosic materials, and if thermosetting resins are used they are set by heat after the embossing process.